Kiyomiya grew up a lifelong fan of professional wrestling, citing Mitsuharu Misawa as his biggest inspiration. Kiyomiya wore green trunks during his early career as tribute to Misawa.
Professional wrestling career
Pro Wrestling Noah
Early career and excursion (2015–2017)
Kiyomiya began training at the Pro Wrestling Noah dojo immediately after graduating from high school in March 2015 and made his debut on December 9, losing to Hitoshi Kumano at Winter Navigation. Kiyomiya faced Kumano again the next day, losing once again. Kiyomiya would go winless throughout the rest of 2015, losing to Taiji Ishimori, Quiet Storm, Genba Hirayanagi and Yoshinari Ogawa. He teamed with Yoshihiro Takayama at Destiny 2015 in a losing effort against Ogawa and Kumano.
Kiyomiya would remain winless until March 17, when he teamed with Mitsuhiro Kitamiya and Hitoshi Kumano to defeat Kyu Mogami, Ayato Yoshida and Go Asakawa at a Taka and Taichi Produce show for his first professional win. On that same show, Kiyomiya participated in a battle royal, which was eventually won by Takashi Iizuka. On March 27 at We Are Suzuki-Gun 2, Kiyomiya teamed with Hitoshi Kumano to defeat NJPW's Teruaki Kanemitsu and Hirai Kawato. On May 19, Kiyomiya debuted for NJPW at Lion's Gate Project 2, defeating Kawato once again, this time in a singles match. The first big win of Kiyomiya's career would come at We Are Suzuki-Gun 3 on June 18, where he outlasted Taiji Ishimori, Quiet Storm, Akitoshi Saito, Muhammad Yone, Andy Dalton, Eclipse, Hiroyo Matsumoto, Hitoshi Kumano, Ryo Kawamura, Shiro Tomoyose and Yoshinari Ogawa to win Minoru Suzuki's 48th Birthday Anniversary Royal Rumble Match, awarding him the right to a match against Suzuki. The two wrestled to a no-contest on July 16. Kiyomiya debuted for the Kaientai Dojo promotion on July 23, teaming with Go Asakawa in a loss to Taishi Takizawa and Kotaro Yoshino. Kiyomiya teamed with the ace of Pro Wrestling Noah, Naomichi Marufuji on August 24, defeating Minoru Suzuki and Takashi Sugiura. Kiyomiya wrestled again for NJPW on September 1 at Lion's Gate Project 3, representing Noah alongside Masa Kitamiya, Katsuhiko Nakajima, Maybach Taniguchi, and Go Shiozaki in a ten-man tag team match where they were defeated by NJPW's Hiroyoshi Tenzan, Satoshi Kojima, Yuji Nagata, Manabu Nakanishi and Katsuyori Shibata. Kiyomiya again competed for K-DOJO on October 1, teaming with GO Asakawa and Dinosaur Takuma in a loss to Saburo Inematsu, Daigoro Kashiwa and Kotaro Nasu. Kiyomiya was defeated in a rematch against Minoru Suzuki on October 23. Kiyomiya entered the 2016 Global League, finishing last in his block with zero wins and zero points.
On January 9, 2017, Coming of Age Day in Japan, Kiyomiya unsuccessfully faced Takashi Sugiura in a singles match, however, afterwards, Sugiura, impressed with Kiyomiya, offered him a handshake and the chance to form an alliance. Kiyomiya accepted, stating that he is ready to take the next step in his career, aligning himself with Sugiura and turning heel in the process. The following day, Kiyomiya debuted a new all black ring attire along with a more vicious ring style and ruthless attitude in a loss to Hi69. Kiyomiya, now a fully fledged heel, teamed with Sugiura on February 24 to defeat GHC Tag Team Champions Kenoh and Masa Kitamiya after Kenoh turned on Kitamiya to align himself with Sugiura and Kiyomiya. Kiyomiya teamed with Takuya Nomura in the 2017 Global Tag League. The team finished with four points after defeating Robbie E and Bram by forfeit and Cody Hall and Randy Reign on the final day of the league to prevent Hall and Reign from entering a three-way tie for first place. On May 4, Kiyomiya was pinned by Nomura, and refused a handshake following the match. On June 5, it was announced by Kiyomiya that he would be going to Canada on a learning excursion. His last match before leaving took place on June 25, where he was defeated by Kenoh.
Kiyomiya returned from his excursion on December 22, confronting and challenging Kenoh after he had defeated Eddie Edwards to win the GHC Heavyweight Championship. Afterwards, Kiyomiya was named as Kenoh's first challenger for the GHC Heavyweight Championship. Kiyomiya lost by knockout on January 6, 2018. After the match, Kenoh and Takashi Sugiura turned their back on Kiyomiya, attacking him, before he was saved by the whole NOAH roster, specifically Go Shiozaki, who helped him to the back, turning Kiyomiya face in the process.
- Signature moves
- Boston crab
- Bridging German suplex
- Bridging Tiger suplex
- Teams and stables
- Partnered with Go Shiozaki
Championships and accomplishments
- Pro Wrestling Noah
- Tokyo Sports
- Fighting Spirit Award (2018, 2019)